UV Curing Machine: UV Curing Reflector

Types of UV-curing reflectors are focus type, non-focus type, and multi-faceted reflective type. The focus is generally used. The structure of this reflector is characterized by the concentrated energy of the reflected UV light, the high efficiency of photo-curing, which is conducive to the solidification of the ink of the thick ink layer, and the complete curing of the deep ink layer. In this regard, attention should be paid to the selection and shape of UV curing reflectors.

(1) UV curing reflector cover selection

Aluminum must be used, but iron or stainless steel cannot be used for cost saving because the stainless steel plate will turn black at high temperatures. After blackening, it will not only reflect light but also absorb light. Reflective effect is the best mirror aluminum oxide plate, the reflectance of up to 80% or more, thereby greatly improving the utilization of UV.

(2) UV curing reflector shape

The shape of the reflector is to ensure that the UV light can be gathered together, so the shape of the semicircle is best. Also note the placement of the UV lamp to ensure it is in focus. In addition, the reflector is an important channel for heat dissipation of the UV lamp. Therefore, the outer side of the aluminum cover must be processed into a heat sink to increase the heat dissipation area.

Reflectors play a very important role in UV curing devices. Some manufacturers often overlook its role, and use some alternatives to act as a reflector, and even do not install a reflector, so that the UV lamp 40% -50% of the UV energy is wasted. The countermeasures of some manufacturers are to increase the power of UV lamps blindly. This not only fails to fundamentally solve the problem, but also causes a greater waste of electrical energy.